Hardness meaning
The relative resistance of a metal or other material to denting, scratching, or bending.
noun
The state or quality of being hard (in various senses)
noun
The quality of being hard.
noun
The quality or condition of being hard.
noun
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The relative resistance of a mineral to scratching, as measured by the Mohs scale.
noun
The relative capacity of a substance for scratching another or for being scratched by another.
noun
A measure of how easily a mineral can be scratched. Hardness is measured on the Mohs scale.
Origin of hardness
From hard + -ness.